大跨度连续梁桥钢绞线长束的张拉施工

Pretension Construction of Long Strands for Continuous Beam Bridges with Large Span

预应力技术是现代桥梁建设中越来越重要的手段,确保预应力施工的质量,是大跨度连续梁桥施工质量和工期的关键。文章阐述了大跨度连续梁桥的钢绞线长束张拉施工实践中容易遇到的问题、采取的施工工艺及提高预应力质量的控制措施。

Prestress technologies are more and more important means in the modem bridge construction. Ensuring the quality of pretension construction is the key of construction quality and construction period for large span continuous beam bridge. The article, summarizes the problems encountered easily and the construction technologies to deal with the problems and the control measures raising the pretension quality during the pretension construction practice of long strands for continuous beam bridge with large span.